As the heroes escort survivors from the doomed city of Vigil, they receive an urgent message from their mysterious patron. The Whispering Tyrant is working his way free of his imprisonment in Gallowspire, and the time is at hand to strike! The heroes must venture into the haunted lands of Virlych to confront the mighty lich-lord before he recovers his full power, and before he can unleash another horrid blast of his devastating super-weapon, the Radiant Fire. "Gardens of Gallowspire" is a Pathfinder Roleplaying Game adventure for 11th-level characters. The adventure continues the Tyrant's Grasp Adventure Path, as players enter a land twisted by evil and strange magic. This volume also includes a selection of new monsters, additional missions in Lastwall, an examination of the ecology of carnivorous plants, and an examination of the strange witchgates that shield Virlych.